When you go out in bad weather, you wear a jacket to protect yourself from rain, wind and other elements. A home should be protected in the same fashion. Without a protective barrier, the home can get wet, which can lead to wood rot and mold growth.
Is there a better way to protect a home from these elements?
Using a house wrap during the framing stage of construction will prevent moisture from entering the home. This will protect the house from rotting and from developing mold or fungus. Additionally, air infiltration through the framed walls will be blocked.
The "best practice" for protecting your home from wind and water while allowing it to "breathe" is to install a layer of "house wrap" made of a thin layer of spun-bonded polyethylene.
Here's how to do it:
Many builders do not install a drainage plane at all. The builders who do often install "building paper," a sheet of asphalt-impregnated felt paper, to protect the house from exterior water penetration. Unlike house wrap, however, building paper doesn't effectively reduce air infiltration because it has many seams, while house wrap is a continuous sheet with minimal overlaps.
House wrap produces a breathable, weather-resistant barrier that will reduce energy costs and prevent wind-driven rain from entering the walls of a home.
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